JPH0667735U - Fence beam pipe mounting structure - Google Patents

Abstract

(57) [Summary] [Purpose] The bracket can be attached to the column from one side. [Structure] A large circular hole 11a is formed in the column 11. The bracket 14 has an elongated rectangular shape, has a cylindrical bolt receiving surface 14a in the middle, and has an elongated hole 14b. The mounting bolt 15 is passed through the long hole 14b of the receiving metal fitting 14 and the receiving metal fitting 14 is inserted into the pillar 11 through the pillar hole 11a and brought into contact with the inner surface of the pillar. The bracket 13 has a bottomed cylindrical shape having a spherical bottom surface 13a. Bracket 13
Is applied to the column hole 11a, and the bracket 14 and the bracket 13 are fastened and fixed by the mounting bolt 15 and the winged nut 17. As a result, the bracket 13 is fixed to the column 11. The winged nut 17 is turned by a cruciform rib-shaped nut turner 24 at the end of the beam pipe 12. The bracket 13 can be fixed from one side of the column 11.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a beam pipe mounting structure for a fence mainly used on a sloping ground, in which a bottomed cylindrical bracket having a spherical bottom surface is fixed to a cylindrical column, and the beam pipe is fitted and fixed to this bracket.

[0002]

[Prior art]

 In a sloping ground fence with a structure in which a bracket is fixed to a pillar and a beam pipe is fitted and fixed to this bracket, the beam pipe must be installed parallel to the sloping ground. It is desirable to be able to attach to the column at any angle. A beam pipe mounting structure of this type is shown in FIGS. 9 and 10 (see Jpn. Pat. Appln. KOKAI No. 4-31293). In this beam pipe mounting structure, a cylindrical end portion 2 into which the beam pipe 1 is fitted is integrally formed with a contact end face 3 having an arc shape in the vertical direction and the left and right direction, and a laterally elongated hole 4 is formed in the joint end face 3. A bracket 6 in which a vertical elongated hole 5 for joining is formed on the upper surface of the tubular portion 2 is used. The bracket 6 is placed on both sides of the column 7 with its joining end face 3 being applied to the column 7, and has a curved seat 8a. The bolt 8 is passed through the strut 7, the joint end surface 3 part is tightened and fixed to the strut 7 with the nut 9 which also has the curved seat 9a, the beam pipe 1 is inserted into each bracket 6, and the bolt 10 and the nut penetrating vertically The beam pipe 1 is fixed to the bracket 6 by 10a.

[0003]

[Problems to be solved by the device]

 According to the beam pipe mounting structure having the above structure, the beam pipe 1 can be mounted on the support column 7 while being arbitrarily tilted corresponding to the angle of the sloping ground. However, since the bracket 6 is fixed by the bolt 8 penetrating the strut 7, it has an unnecessary effect on both sides when only one span is replaced. In addition, the pillar head at the end of the fence exposes the head of the bolt on the side without the beam pipe, which is not desirable in appearance. Further, since the joining end surface 3 of the bracket 6 is formed in an arc shape in the vertical direction and the horizontal direction, the bracket 6 has a line contact with the column 7, and there is a problem that a sufficiently stable connection cannot be obtained. Further, the bolt 8 and the nut 9 for fixing the bracket 6 to the column 7 cannot be tightened with a spanner when the beam pipe 1 is fitted to the bracket 6, so that the beam pipe 1 is fitted to the bracket 6. Since it is necessary to perform final tightening and fixing before, it is not always easy to adjust the angle of the bracket 6 to the angle of the sloping ground, and the fitting length between the beam pipe 1 and the bracket 6 is not always easy. Since the length cannot be made sufficiently long, the connection between the beam pipe 1 and the bracket 6 cannot be made sufficiently strong.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and it is possible to mount an independent beam pipe for each span of the fence, and also to stably mount the beam pipe on a column. ， In addition, it is easy to properly adjust the bracket to the angle of the sloping ground, and the length of the fitting part between the beam pipe and the bracket can be sufficiently secured to provide a stable structure for the beam pipe mounting structure. The purpose is to do.

[0005]

[Means for Solving the Problems]

 The present invention, which solves the above-mentioned problem, is a beam pipe mounting structure in a fence in which a cylindrical pipe with a bottom having a spherical bottom is fixed to a cylindrical support, and the beam pipe is fitted and fixed to this bracket. The support is inserted into the support through a support hole formed in the support, contacts the inner surface of the support at the support hole, and has a substantially rectangular shape with a spherical or cylindrical bolt receiving surface. Mounting so that the head is inserted into the bracket and the long hole formed in the bolt receiving surface of the bracket so that the head remains inside the column, and the screw is inserted into the bracket through the hole on the center line of the bracket. It is characterized in that it is provided with a bolt and a nut that is screwed into the threaded portion of the mounting bolt.

According to a second aspect of the present invention, the elongated hole provided in the bolt receiving surface portion of the receiving metal fitting is extended to the column inner surface contact portion that contacts the column inner surface.

A third aspect of the present invention is characterized in that a small protrusion for preventing displacement is provided on the inner surface of the support of the support bracket so as to contact the inner circumference of the support hole.

A fourth aspect of the present invention is characterized in that the bracket is provided such that its spherical bottom surface is substantially in contact with the support hole.

According to a fifth aspect of the present invention, in the fourth aspect, an annular member made of plastic is provided so as to surround the support hole and is interposed between the spherical bottom surface of the bracket and the outer surface of the support. Characterize.

According to a sixth aspect of the present invention, a cylindrical spacing member is arranged in the column hole, and the spherical bottom surface of the bracket is brought into contact with the spacing member.

A seventh aspect of the present invention is characterized in that a nut driver for turning a nut that is screwed into a threaded portion of a mounting bolt in the bracket is attached to an end portion of the beam pipe.

The invention of claim 8 fixes the bracket directly or indirectly to the column by a mounting bolt passing through the center of the bottom surface of the bottomed cylindrical bracket, and fits the beam pipe to the bracket. A beam pipe mounting structure for a fence to be fixed, wherein a nut screwed to the thread portion of the mounting bolt in the bracket or a nut driver for rotating the head of the mounting bolt is provided at the end of the beam pipe. It is a feature.

[0013]

[Action]

 In the above configuration, when fixing the bracket to the column, insert the mounting bolt into the elongated hole of the bracket and insert the bracket into the column through the hole of the column. Insert the screw on the outside of the column of the mounting bolt into the hole formed in the spherical bottom surface of the bracket, screw the nut into the screw inside the bracket, and tighten the nut to attach the spherical bottom surface of the bracket to the mounting bolt. And it is fixed to the column by the tightening force of the nut. Since the head of the mounting bolt is received by the spherical or cylindrical bolt receiving surface of the receiving bracket, the bracket angle can be arbitrarily tilted within a certain range, and the beam pipe can be tilted. it can. It should be noted that the bracket may be inserted into the column with the bracket temporarily attached to the bracket with the mounting bolts and nuts.

The bracket is fixed to the column by directly contacting the inner peripheral edge of the column hole, or is fixed to the column via the annular member of claim 5. In this case, there are few restrictions, and it is possible to make the bracket angle large. Moreover, it is also possible to fix it to the support column via the spacing member of claim 6.

According to a second aspect of the present invention, when the receiving metal fitting is used in which the elongated hole is extended to the column inner surface contacting portion which contacts the column inner surface, the mounting bolt is positioned at the elongated hole end apart from the bolt receiving surface. The bracket can be inserted through the support hole, and the operation to insert the bracket into the support column is easy.

According to the third aspect, the small protrusion that comes into contact with the inner circumference of the support hole prevents the receiving metal fitting from being displaced.

In claim 7, the tightening operation of the nut to be screwed with the mounting bolt is performed by a nut driver provided at the end of the beam pipe. There is no need to separately operate the tool inside the bracket. Therefore, the bracket can be tightened and fixed to the final column with the beam pipe fitted to the bracket, and it is easy to set the bracket and beam pipe angles correctly. In addition, the fitting length between the beam pipe and the bracket can be made sufficiently long.

The beam pipe mounting structure according to claim 8 is not limited to the case where the receiving metal fitting is used, and is generally used in various cases in which a bottomed cylindrical bracket is fixed to the column by a mounting bolt that passes through the center of the bottom surface of the bracket. Is applied to. The same operation as in the case of claim 7 is achieved.

[0019]

【Example】

 Hereinafter, an embodiment of the present invention will be described with reference to FIGS. In FIG. 1, reference numeral 11 is a pillar made of a round pipe of a fence for sloping ground to be installed on a slope such as a slope, reference numeral 12 is a beam pipe made of the same round pipe as a horizontal crosspiece, and reference numeral 13 is a beam pipe 12 fixed to the pillar 11. It is a bracket for. The bracket 13 has a cylindrical shape with a bottom having a spherical bottom surface 13a, and a circular hole 13b is formed at the center of the spherical bottom surface 13a. The bracket 13 is fixed to a circular support hole 11a formed in the support 11 by a receiving fitting 14, a mounting bolt 15, a two-step washer 16, a vane nut 17, and an annular member 18. The column hole 11a is sufficiently larger than the diameter of the mounting bolt 15 and smaller than the diameter of the bracket 13.

As shown in FIGS. 2 and 3, the bracket 14 has an elongated shape having a width smaller than the diameter of the pillar hole 11a and a length larger than the diameter of the pillar hole 11a when viewed from the front. The intermediate portion corresponding to the hole 11a is a bolt receiving surface portion 14a having a cylindrical surface shape in a vertical cross section, and the upper and lower portions are a support pillar inner surface contact portion 14c contacting the inner surface of the support pillar 11, and the cylindrical bolt receiving surface portion 14a. To the vicinity of the lower end of the lower column inner surface contact portion 14c. Further, the receiving metal fitting 14 is provided with four small protrusions 14d for preventing the positional displacement which come into contact with the inner circumference of the column hole 11a. The mounting bolt 15 is inserted into the elongated hole 14b so that the head portion 15a remains in the column 11, and the screw portion 15b is inserted into the bracket 13 from the hole 13b of the bracket 13. The two-step washer 16 includes a small-diameter perforated circular plate 16a contacting the inner surface side of the spherical bottom surface 13a of the bracket 13, a large-diameter perforated circular plate 16b located on the cylindrical inner surface portion of the bracket 13, and both circular plates. It is composed of a cylindrical member 16c which is interposed between 16a and 16b to define the distance between the two. The bladed nut 17 has a structure in which four blades 17b are integrally fixed to an outer surface portion of a hexagonal portion (a portion of a normal hexagonal nut) 17a in two directions at right angles. The annular member 18 is made of flexible plastic, has an annular shape so as to surround the support hole 11a, and has a conical surface 18a that comes into contact with the spherical bottom surface 13a of the bracket 13.

The end portion of the beam pipe 12 is fitted into the bracket 13, and as shown in FIGS. 6 and 7, the countersink hole 13 c formed in the bracket 13 and the beam pipe 12 formed in the beam pipe 12 are long in the longitudinal direction. A countersunk screw 20 passed through the long hole 12a, a washer 21 having a cylindrical surface conforming to the inner surface shape of the beam pipe 12 and a nut 22 held in the long hole 12a portion of the beam pipe 12 by a nut pressing member 23 described later. It is fixed by tightening with.

A nut-shaped nut driver 24 for rotating the vaned nut 17 is fixed to the end of the beam pipe 12. As shown in FIGS. 4 and 5, the nut driver 24 has a rib 25 having a concave notch 25a that engages with the hexagonal portion 17a of the winged nut 17, and a rib 25 that is fitted at a right angle to the rib 25. The ribs 26 each having a notch 26a that engages with the hexagonal portion 17a of the bladed nut 17 are fitted into the four grooves 12b provided at the end of the beam pipe 12 in two directions at right angles to fix the adhesive. It is fixed by welding.

Next, a mounting procedure for the above beam pipe mounting structure will be described. First, outside the support column 11, the receiving metal fitting 14, the annular member 18, and the bracket 13 are aligned in the same order as in FIG. 1, and the mounting bolt 15 is attached from the side of the receiving metal fitting 14 to the elongated hole 14b of the receiving metal fitting 14 and the hole 13b of the bracket 13. Then, the two-step washer 16 is passed through the threaded portion 15b in the bracket 13 and the blade nut 17 is screwed onto the threaded portion 15b. At this time, the receiving metal fitting 14 is separated from the spherical bottom surface 13a of the bracket 13 with a margin. In this state, the upper end of the receiving metal fitting 14 is inserted into the pillar 11 through the pillar hole 11a, the upper and lower pillar inner surface contact portions 14c are brought into contact with the inner surface of the pillar 11, and the small protrusion 14d of the receiving metal fitting 14 is attached. Positioning is performed by applying to the inner peripheral edge of the column hole 11a. In this case, since the elongated hole 14b of the receiving metal fitting 14 extends not only to the bolt receiving surface portion 14a but also to the vicinity of the lower end of the lower column inner surface contact portion 14c, the mounting bolt 15 is located at the lower end portion of the elongated hole 14b. By putting the bracket 14 into the column 11 and pushing it up in this state, the entire bracket 14 longer than the diameter of the column hole 11a can be easily inserted into the column 11, and then the bracket 14 is removed. When dropped, the mounting bolt 15 comes to the position of the bolt receiving surface portion 14a of the elongated hole 14b.

After the above-described operation is performed for the columns 11 on the opposite side of the span, both ends of the beam pipe 12 are fitted into the brackets 13 attached to the columns 11. In this case, one end of the beam pipe 12 is pushed deeply into one bracket 13 and then the other end is fitted into the other bracket 13 with a margin. As a result, the bracket 13 and the beam pipe 12 are automatically set at a desired angle according to the slope. Since the bolt receiving surface portion 14a of the receiving metal fitting 14 has a cylindrical surface in a vertical cross section and is perpendicular to the axis of the mounting bolt 15, it is possible to perform a sufficiently stable tightening, and the bracket 13 can be set in an arbitrary range within a certain range. Can be angled.

Next, when the nut driver 24 at the end of the beam pipe 12 is engaged with the winged nut 17 and rotated, the winged nut 17 is screwed into the threaded portion 15b of the mounting bolt 15 and tightened, whereby The bracket 13 is firmly fixed to the strut hole 11a of the strut 11 via the annular member 18 by the tightening force of the mounting bolt 15 and the nut 17 with the blade. In this case, since the flexible plastic annular member 18 is interposed, the bracket 13 is stably fixed to the column 11. Further, the two-stage washer 16 correctly holds the mounting bolt 15 at the center position of the bracket 13.

Next, the countersunk screw 20 is screwed into the nut 22 arranged inside the beam pipe 12 through the countersink 13c of the bracket 13 and the elongated hole 12a of the beam pipe 12, and is tightened. Fixed to. In this case, the nut 22 is held in the elongated hole 12a portion of the beam pipe 12 so as to be movable in the longitudinal direction of the beam pipe by a nut pressing member 23 formed by punching and bending a metal plate having a spring property. Even if a slight error occurs in the length or position of 12, the position of the countersink 13 of the bracket 13 can be correctly matched.

FIG. 7 shows another embodiment of the beam pipe mounting structure of the present invention. In this embodiment, a cylindrical spacing member 30 is arranged in the strut hole 11a portion of the strut 11, and the spherical bottom surface 13a portion of the bracket 13 is applied to the conical end surface 30a of the spacing member 30. Others are almost the same as the embodiment of FIG. 1 except that the annular member 18 is not provided. In this embodiment, due to the restriction of the position of the head portion 15a of the mounting bolt 15, if the length of the spacing member 30 is increased, the bracket 13 cannot be angled so much. Therefore, it may be applied when the angle of the beam pipe 12 is small even if the beam pipe 12 is horizontal or inclined.

The shape of the receiving fitting is not limited to the shape of the embodiment. Any shape may be used as long as it has a substantially rectangular shape having a width smaller than the diameter of the strut hole 11a and a large length, and has upper and lower portions that contact the inner surface of the strut and a bolt receiving surface in the middle portion. The bolt receiving surface 14a of the receiving member is not limited to the cylindrical surface of the embodiment, but may be spherical. The means for tightening and fixing the mounting bolt 15 is not limited to the vane nut 17 as in the embodiment, nor is it limited to the two-stage washer 16 as in the embodiment. The fixing means for the beam pipe 12 and the bracket 13 is not limited to the configuration in which the nut holding member 23 is movably held in the beam pipe 12 as in the embodiment, and various other means are conceivable. Further, when the annular member 18 is arranged, the bracket 13 is stably fixed to the support column 11, but it is not always necessary to provide it.

[0029]

[Effect of device]

 According to the present invention, since the bracket can be attached from one side of the column, independent beam pipes can be attached to each span of the fence, and when replacing some of the fences, the spans on both sides can be installed. This can be done without affecting the workability and improves workability. In addition, according to the present invention, unnecessary members such as bolt heads are not exposed on the opposite side of the pillar for the pillar at the end of the continuous fence, which is particularly preferable in terms of appearance.

The bracket has a spherical bottom surface that directly contacts the periphery of the support hole, or contacts the annular member, or the cylindrical spacing member, etc., but in both cases, the contact surface is fixed by the annular contact surface. As compared with the case of conventional line contact, a more stable connection is achieved with the column.

According to a second aspect of the present invention, when the receiving metal fitting is used in which the elongated hole is extended to the column inner surface contact portion that contacts the column inner surface, the mounting bolt is positioned at the elongated hole end apart from the bolt receiving surface. The bracket can be inserted through the support hole, and the operation to insert the bracket into the support column is easy.

According to the seventh and the eighth aspects, if the nut screw that rotates the nut that is screwed into the threaded portion of the mounting bolt is fixed to the end of the beam pipe, the beam pipe is fitted to the bracket after it is fitted. Since the bracket can be fixed to the final column, it is easy to properly adjust the bracket and beam pipe to the angle of the sloping ground, and the fitting length between the beam pipe and the bracket is sufficient. Therefore, a stable connection between the two is realized.

[Brief description of drawings]

FIG. 1 is a sectional view of a beam pipe mounting structure showing an embodiment of the present invention.

FIG. 2 is a front view of the receiving fitting in FIG.

3 is a cross-sectional view taken along the line AA of the main part in FIG.

FIG. 4 is a sectional view taken along line BB in FIG.

5 is a sectional view taken along line CC of FIG.

FIG. 6 is an enlarged cross-sectional view taken along line DD of FIG.

FIG. 7 is a plan view of FIG. 6 as viewed from above.

FIG. 8 is a sectional view of a beam pipe mounting structure showing another embodiment of the present invention.

FIG. 9 is a front view showing a conventional beam pipe mounting structure.

FIG. 10 is an enlarged perspective view of the bracket in FIG.

[Explanation of symbols]

 11 Struts 11a Strut holes 12 Beam pipes 12a Long holes 12b Grooves 13 Brackets 13a Spherical bottom surface 13b Holes 13c Countersinks 14 Receiving metal fittings 14a Bolt receiving surface portions 14b Long holes 14c Strut inner surface contact portions 14d Small projections 15 Mounting bolts 15a Head portions 15b Screws Part 17 Nut with blade 18 Annular member 24 Rotating nut 25,26 Rib 25a, 26a Notch 30 Spacing material

Claims (8)

[Scope of utility model registration request] 1. A beam pipe mounting structure in a fence having a structure in which a bottomed cylindrical bracket having a spherical bottom surface is fixed to a cylindrical support, and the bracket is fitted and fixed to the bracket. A substantially rectangular receiving fitting that is inserted into the supporting pillar from the opened supporting hole, contacts the inner surface of the supporting pillar at the supporting hole, and has a spherical or cylindrical bolt receiving surface portion, and A mounting bolt which is inserted into a long hole formed in the bolt receiving surface so that the head remains in the column, and a screw portion is inserted into the bracket through a hole on the center line of the bracket, and the mounting bolt described above. A beam pipe mounting structure for a fence, which is provided with a nut that is screwed into a threaded portion. 2. The fence beam pipe mounting structure according to claim 1, wherein the elongated hole provided in the bolt receiving surface portion of the receiving metal fitting is extended to a contact portion of the support pillar inner surface which contacts the support pillar inner surface. 3. The fence beam pipe mounting structure according to claim 1, wherein a small projection for preventing a positional displacement that is in contact with an inner circumference of the strut hole is provided on an inner surface side of the strut of the receiving metal fitting. 4. The fence beam pipe mounting structure according to claim 1, wherein the bracket is provided such that its spherical bottom surface substantially contacts the support hole. 5. The fence according to claim 4, further comprising an annular member made of plastic, which is arranged so as to surround the support hole and is interposed between the spherical bottom surface of the bracket and the outer surface of the support. Beam pipe mounting structure. 6. The fence beam pipe mounting structure according to claim 1, wherein a cylindrical spacer is arranged in the column hole, and the spherical bottom surface of the bracket is brought into contact with the spacer. . 7. The beam pipe for a fence according to claim 1, further comprising a nut driver attached to an end of the beam pipe for turning a nut screwed into a threaded portion of a mounting bolt in the bracket. Mounting structure. 8. A beam pipe of a fence in which the bracket is directly or indirectly fixed to a support by a mounting bolt passing through the center of the bottom surface of a bottomed tubular bracket, and the beam pipe is fitted and fixed to the bracket. A beam of a fence having a mounting structure, wherein a nut screwed into a threaded portion of the mounting bolt in the bracket or a nut driver for rotating the head of the mounting bolt is provided at the end of the beam pipe. Pipe mounting structure.